Recording medium having a data structure for managing data streams associated with different languages and recording and reproducing methods and apparatuses

Abstract

In the data structure for managing data streams associated with different languages, a playlist including at least one playitem for managing reproduction of a main data stream is provided. The playitem includes a table defining a list of data streams. The list of data streams includes the main data stream and a data stream of at least one type of supplemental data stream. The table includes language information on each supplemental data stream of the type of supplemental data stream, and the language information indicates a language associated with the supplemental data stream.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application claims the benefit of priority under 35 U.S.C. 119 on Korean Application No. 10-2004-0015864, filed on Mar. 9, 2004, which is hereby incorporated by reference in its entirety. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to high density recording media such as read-only blu-ray discs (BD-ROM). [0004] 2. Discussion of Related Art [0005] Optical discs are widely used as an optical recording medium. Presently, of the optical discs, a new high density optical recording medium (HD-DVD), such as the Blu-ray Disc (hereafter called as “BD”), for recording and storing a large amount of high definition video and audio data is under development. [0006] Currently, global standard technical specifications of the Blu-ray Disc (BD), a next generation HD-DVD technology, are being established as a next generation optical recording solution that can store amounts of data significantly ...

AI Technical Summary

Benefits of technology

The present invention is a recording medium that includes a data structure for managing data streams associated with different languages. The recording medium stores a playlist including at least one playitem for managing reproduction of a main data stream, and the playitem includes a table defining a list of data streams. The table includes language information for each supplemental data stream, which indicates a language associated with the supplemental data stream. The table also includes a type indicator for each data stream indicating whether the data stream is used by the playitem or a subpath of the playitem. The recording medium also stores a clip information file including at least a program information data structure for each data stream. The program information data structure provides stream coding information for each data stream, which includes language information indicating a language associated with the data stream. The coding information also includes a type indicator indicating the type of data stream, such as text subtitles or interactive graphics. The present invention provides apparatuses and methods for recording and reproducing the data structure.

Problems solved by technology

However, the Blu-ray Disc (BD) standards are not complete yet, and there has been difficulty in developing a complete optical reproducing apparatus.

However, in the present Blu-ray Disc (BD) standards, because consolidated standards for managing the various data, particularly the supplemental data are not complete yet, there are many restrictions on the development of a Blu-ray Disc (BD) optical reproducing apparatus.

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